/*
 * Copyright 2018- The Pixie Authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * SPDX-License-Identifier: Apache-2.0
 */

package utils

import (
	"bytes"
	"errors"
	"os/exec"
)

// ExecCommand runs a command and returns stderr as the error.
func ExecCommand(name string, args ...string) error {
	kcmd := exec.Command(name, args...)
	var stderr bytes.Buffer
	kcmd.Stderr = &stderr
	err := kcmd.Run()
	if err != nil {
		return errors.New(stderr.String())
	}
	return nil
}
